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Carbon Nanotube Biofiber Formation in a Polymer-Free Coagulation Bath

Razal, Joselito M, Gilmore, Kerry J and Wallace, Gordon G 2008, Carbon Nanotube Biofiber Formation in a Polymer-Free Coagulation Bath, Advanced Functional Materials, vol. 18, no. 1, pp. 61-66, doi: 10.1002/adfm.200700822.

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Title Carbon Nanotube Biofiber Formation in a Polymer-Free Coagulation Bath
Author(s) Razal, Joselito MORCID iD for Razal, Joselito M orcid.org/0000-0002-9758-3702
Gilmore, Kerry J
Wallace, Gordon G
Journal name Advanced Functional Materials
Volume number 18
Issue number 1
Start page 61
End page 66
Total pages 6
Publisher Wiley-VCH Verlag
Place of publication Weinheim, Germany
Publication date 2008
ISSN 1616-301X
Keyword(s) Biomedical applications
Carbon nanotubes
Conductivity
Fibers
Single-walled carbon nanotubes
Solution processing
Summary A novel solution spinning method to produce highly conducting carbon nanotube (CNT) biofibers is reported. In this process, carbon nanotubes are dispersed using biomolecules such as hyaluronic acid, chitosan, and DNA, and these dispersions are used as spinning solutions. Unlike previous reports in which a polymer binder is used in the coagulation bath, these dispersions can be converted into fibers simply by altering the nature of the coagulation bath via pH control, use of a crosslinking agent, or use of a biomolecule-precipitating solvent system. With strength comparable to most reported CNT fibers to date, these CNT biofibers demonstrate superior electrical conductivities. Cell culture experiments are performed to investigate the cytotoxicity of these fibers. This novel fiber spinning approach could simplify methodologies for creating electrically conducting and biocompatible platforms for a variety of biomedical applications, particularly in those systems where the application of an electrical field is advantageous?for example, in directed nerve and/or muscle repair.
Language eng
DOI 10.1002/adfm.200700822
Field of Research 109999 Technology not elsewhere classified
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2008, Wiley-VCH Verlag.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30061351

Document type: Journal Article
Collection: Faculty of Science, Engineering and Built Environment
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